False-color image of a dramatic solar prominence captured on June 1st from Stuttgart, Germany, using an amateur telescope. The image shows two large prominences, with the one on the left being large enough to encompass Earth. These are clouds of solar gas suspended above the sun's surface by its magnetic field. They are cooler than the surrounding solar surface and appear dark in contrast, despite being extremely hot. A quiescent prominence like this can last for about a month, potentially erupting as a coronal mass ejection (CME).

Astronomy Picture from 07/07/2003

At the Edge of the Sun

Source: https://apod.nasa.gov/apod/ap030707.html


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